The AEMC 3711 clamp-on ground resistance tester measures ground rod and grid resistance in any
environment without the use of auxiliary ground rods. Clamp-on ground resistance testers are used on multi-
grounded systems without disconnecting the ground under test. The simply clamps around the ground
conductor or rod and measures the resistance to ground fast and accurately.
The AEMC 3711 clamp-on ground resistance tester includes a current measurement function. The probe's
high sensitivity enables measurement of leakage current flowing to ground or circulating in ground loops down
to 1 mA as well as neutral and phase currents to 10 A RMS. This feature provides additional information,
which is vital in distribution ground networks carrying higher levels of noise and harmonics, that affect
power quality.
Applications for the AEMC 3711 clamp-on ground resistance tester:
- Measure electrical ground rod and grid resistance
- Use on multi-grounded systems without disconnecting the ground rod under test
- Measure resistance and continuity of grounding loops around pads and buildings
- Measure leakage current flowing to ground or circulating in ground systems
The AEMC 3711 clamp-on ground resistance tester ships complete with:
- Calibration loop
- 9V Battery
- Hard case
- Manual
| AEMC 3711 Clamp-on Ground Resistance Tester Specifications |
Ground resistance ranges
Auto-ranging 0.01 to 1200 Ω |
Measurement range |
Resolution |
Accuracy (% of reading) |
|
0.10 to 1.00 Ω |
0.01 Ω |
±(2% ±0.02 Ω) |
|
1.0 to 50.0 Ω |
0.1 Ω |
±(1.5% ±0.1 Ω) |
|
50.0 to 100.0 Ω |
0.5 Ω |
±(2% ±0.5 Ω) |
|
100 to 200 Ω |
1 Ω |
±(3% ±1 Ω) |
|
200 to 400 Ω |
5 Ω |
±(6% ±5 Ω) |
|
400 to 600 Ω |
10 Ω |
±(10% ±10 Ω) |
|
600 to 1200 Ω |
50 Ω |
Approx:25% ±50 Ω |
Current measurement ranges
Auto-ranging 1 mA to 30.00 A RMS |
Measurement range |
Resolution |
Accuracy (% of reading) |
|
1 to 299 mA |
1 mA |
±(2.5% + 2 mA) |
|
0.300 to 2.999 A |
0.001 A |
±(2.5% + 2 mA) |
|
3.00 to 29.99 A |
0.01 A |
±(2.5% + 20 mA) |
| Current measurement frequency |
47 to 800 Hz |
| Current overload |
OL displayed above 29.99 A RMS |
| Power source |
9V alkaline battery (IEC 6LF22 or NEDA 1604A) |
| Jaw window diameter |
1.25" (32 mm) |
| Jaw opening |
1.38" (35 mm) |
| Safety rating |
EN 61010-2-032 (Class 2) Double insulation |
| Double insulation |
Yes |
| CE mark |
Yes |
